Any idea why my HDMI port doesn't work?

that1guyy

macrumors 6502
Original poster
Nov 11, 2011
457
19
I have a late 2013 15inch rMBP. Earlier today I tried to plug an hdmi cable into the hdmi from the port on my mac onto a TV. For some reason, it just wouldn't work; the TV screen just said "no signal" or something.

My friend had to bring his laptop and he got his to work in an instant. He has a two year old HP. Sad that my super expensive mac can't do something this simple and his much more inexpensive computer has no issues.

Any ideas?
 

nebo1ss

macrumors 68030
Jun 2, 2010
2,817
1,251
As far as I am aware and my experience is that when you plug you Mac into a TV with an HDMI cable it should automaticlly come up as a second screen. You should only need to make changes under system preferences to determine what you want to display on the screen.
 

Ardmanz

macrumors regular
Jul 12, 2013
212
20
Do you have gfxCardStatus and have it set to Integrated only?
This.

For some reason, once, my MBP decided not to switch over to dgpu (gfxCardStatus was set to dynamic). I forced it to use the dgpu and it worked fine.
 

takeshi74

macrumors 601
Feb 9, 2011
4,970
68
As far as I am aware and my experience is that when you plug you Mac into a TV with an HDMI cable it should automaticlly come up as a second screen.
Depends on how it's set up. I have the TV set as primary with mirroring.
 

that1guyy

macrumors 6502
Original poster
Nov 11, 2011
457
19
Does the arrangement tab only appear when it is connected to an external display? I don't have that tab currently. But I will try it out when I try again (wasn't my TV)

Also, I do have gfxcardstatus on integrated. Didn't know that caused issues. Thanks for the heads up!
 

nebo1ss

macrumors 68030
Jun 2, 2010
2,817
1,251
Depends on how it's set up. I have the TV set as primary with mirroring.
Of course you can change it to whatever you want in settings but my experience is that the default is that it comes up as a second screen. If the OP is seeing nothing then something else is wrong other than a setting parameter.
 

everfangomanga

macrumors member
Jul 12, 2008
59
0
Osaka, Japan
Does the arrangement tab only appear when it is connected to an external display? I don't have that tab currently. But I will try it out when I try again (wasn't my TV)

Also, I do have gfxcardstatus on integrated. Didn't know that caused issues. Thanks for the heads up!
So did this solve your problem? You need to set it to discrete/dynamic for HDMI to work!
 

that1guyy

macrumors 6502
Original poster
Nov 11, 2011
457
19
So did this solve your problem? You need to set it to discrete/dynamic for HDMI to work!
Haven't tested it yet. It was my friend's TV. I might have time this weekend though and will update this thread.

Thanks for the help guys! Hopefully there isn't a hardware problem with the port.
 

Intelligent

macrumors 6502a
Aug 7, 2013
933
2
Haven't tested it yet. It was my friend's TV. I might have time this weekend though and will update this thread.

Thanks for the help guys! Hopefully there isn't a hardware problem with the port.

Probably not, don't say "my super expensive computer can't do this" without having checked it first :)